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Tungsten carbide coating on aluminum

January 13, 2010

Dear sir,
we have some parts for our machine.we want to coat Tungsten carbide (88%) and cobalt(12%).
Basic material is aluminium.
Coating thickness is 0.025".
Plate size 0.115" Thk x 4" Long x .375" width.

it's possible to coating on aluminium?

Bhavesh Thekdi
- Vadodara,Gujarat,India
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January 16, 2010

HVOF guns can apply WC coatings that thick and more but hardly will your substrate withstand the temperature and pressure. Perhaps with special fixturing and cooling. Sintering is also limited by the low melting point of aluminum. Maybe an ESD coating but its thickness will be around 0.002-0.004".

Guillermo Marrufo
Monterrey, NL, Mexico


January 18, 2010

Look up thermal spray which would include high energy and flame spray. Plasma spray might be a bit too hot for aluminum, You might look at HVOF as a possibility.

James Watts
- Navarre, Florida

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